Method for producing a latent electric charge pattern and a device for performing the method
AssigneeOve Larsson Production AB
InventorOve Larsson
Life of this patent
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Abstract
The invention refers to a method for producing a latent electric charge pattern of electric signals and development thereof on an information carrier by means of pigment particles. The information carrier (3) is brought in electric cooperation with at least one screen- or lattice-shaped matrix, preferably an electrode matrix (4, 5, 6) which by way of control opens and closes passages through the matrix in accordance with the configuration of the desired pattern, by means of galvanic connection thereof to at least one voltage source, and that through the passages thus opened is exposed an electric field for attraction of the pigment particles against the information carrier. The invention also relates to a device for performing the method.
Claims15
A method for producing a latent electric charge pattern from electric signals and developing this on an information carrier by means of pigment particles, characterized therin, that the information carrier (3;
- 12) is brought to electric cooperation with at least one screen- or lattice-shaped matrix, preferably an electrode matrix (4, 5, 6;4, 61, 62), which due to control in accordance with the configuration of the desired pattern, at least partly opens and closes passages through the matrix, by means of galvanic connection thereof to at least a voltage source, and that through the passages thus opened is exposed an electric field for attraction of the pigment particles against the information carrier.
Dependencies are inferred from the claim text.